Since its launch on March 15, iOS 15.4 has been constantly complained by users about causing battery drain. However, this is only a short term problem.
According to BGR, iPhone users often complain about battery life after each round of Apple releases a new operating system update. iOS 15.4 version is no exception.
On Twitter, a series of customers talked about the severe battery drain. Most people think that the usage time is only about half of what it was before the update.
“iOS 15.4 is causing my iPhone 13 Pro Max to drain its battery rapidly. Before that, I could go days without charging. Currently, its battery life is only about half a day," user Oded Shopen shared on Twitter.
However, according to the Daily Mail, the problem of battery life dropping sharply after an update usually doesn't last long. Besides, ZDNet author Adrian Kingsley-Hughes explains that updating to a new operating system on an iPhone will trigger a lot of applications running in the background.
This not only consumes power, but recalibration can cause users to worry about reduced battery capacity. However, this is not accurate and only happens for a short time.
In addition, some previously installed applications may not be able to adjust after the update. Combined with so many new features available, the problem of battery drain is not surprising.
Basically, the iPhone needs a few days to recalibrate everything back to normal. Of course, users should also check the battery status on the phone to make sure there is no problem. To see the current battery capacity, just go to Settings -> Battery -> Battery status.
iOS 15.4 version brings a lot of essential features for users. In particular, the ability to unlock with Face ID when wearing a mask is the most interested. However, this feature only supports iPhone 12 and above due to the high requirements of the sensor.
In addition, iOS 15.4 also adds new security features for the AirTag finder, 37 emojis and a new voice for the Siri virtual assistant.
According to my personal feelings when upgrading to 15.4, my iPhone 12 Pro Max battery drains quite quickly, even though I have updated to version 15.4.1, the battery life has not been improved.
If I could go back to the past, I would go back to iOS 10 or even lower. The higher the iOS, the worse it gets.